Rescue plainly sucks on ELO, I tried every single combination I could and couldn't get much past 1250...their best cards are perma-banned, and they suffer a lot against SoA and SoB (and if you see that Gheist, Piranas and Nightmare are used quite a lot, you have a big problem here).

With those 17k have you can build yourself a pretty solid deck, that can easily get to 1300+
Something like:
Jeto, Noodile, Rico, Yookie, Sigma, Jautya, Uranus, Petra
(Just out of my head, some cards I always see when 1300)